Home / 92,998.56-128,273.04-61,157.28

Finding the Fourth Proportional to 92,998.56, 128,273.04 and 61,157.28

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Solution

The fourth proportional to 92,998.56, 128,273.04 and 61,157.28 is: 84,354.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,998.56 : 128,273.04 = 61,157.28 : x
  2. Step 2: Convert to fraction form
    92,998.56/128,273.04 = 61,157.28/x
  3. Step 3: Cross multiply
    92,998.56x = 128,273.04 × 61,157.28
  4. Step 4: Simplify right side
    92,998.56x = 7,844,830,223.73
  5. Step 5: Solve for x
    x = 7,844,830,223.73/92,998.56
  6. Step 6: Final answer
    x = 84,354.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.